IllustrationWHILE VEHICLE WAS PARKED IT SUDDENLY IGNITED BY ITSELF DUE TO A SHORT CIRCUIT IN THE IGNITION SWITCH (OR POSSIBLY THE CRUISE CONTROL). VEHICLE WAS A TOTALLED. DEALER HAS BEEN CONTACTED. *AK
1993 Mercury Grand Marquis
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 1993 Mercury Grand Marquis do not stand out strongly from the model-year median of 78.
About this comparison →How this year compares
Owner complaints by model year
Compare all Grand Marquis years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 15 of 144 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Power Train. Review the 29 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 22 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 20 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
9 crash reports18 fire reports5 injury reports
Electrical System complaints
20 reportsTHE KEY WILL GET STUCK IN THE IGNITION OR IT WILL NOT TURN. *AK
WHILE DRIVING AT 65-70 MPH IGNITION MALFUNCTIONED, CAUSING MOMENTARY HESITATIONS. PROBLEM HAPPENED INTERMITTENTLY, AND IGNITION FAILED 30 TO 40 TIMES. ALTHOUGH DEALER SAYS THEY KNOW NOTHING ABOUT A DEFECT WITH THE THICK FILM IGNITION MODULE, NEWS REPORTS SAY THAT THE TFI IS MOUNTED WHERE ENGINE HEAT ON A HOT DAY CAN CAUSE IT…
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WHILE DRIVING AT 65-70 MPH IGNITION MALFUNCTIONED, CAUSING MOMENTARY HESITATIONS. PROBLEM HAPPENED INTERMITTENTLY, AND IGNITION FAILED 30 TO 40 TIMES. ALTHOUGH DEALER SAYS THEY KNOW NOTHING ABOUT A DEFECT WITH THE THICK FILM IGNITION MODULE, NEWS REPORTS SAY THAT THE TFI IS MOUNTED WHERE ENGINE HEAT ON A HOT DAY CAN CAUSE IT TO FAIL. *AK
LOCATION OF THE WIRING HARNESS TO THE STARTER IS ALL THE WAY ON THE BOTTOM, WHICH IS UNPROTECTED FROM WATER/DAMPNESS, ETC, WHICH RESULTS IN CORROSION CAUSING THE VEHICLE TO STALL. THE DEALER/MANUFACTURER ARE AWARE OF THE SITUATION BECAUSE A IMPROVED STARTER AND HARNESS WERE DESIGNED, BUT THERE IS NOT A RECALL. THE VEHICLE WIL…
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LOCATION OF THE WIRING HARNESS TO THE STARTER IS ALL THE WAY ON THE BOTTOM, WHICH IS UNPROTECTED FROM WATER/DAMPNESS, ETC, WHICH RESULTS IN CORROSION CAUSING THE VEHICLE TO STALL. THE DEALER/MANUFACTURER ARE AWARE OF THE SITUATION BECAUSE A IMPROVED STARTER AND HARNESS WERE DESIGNED, BUT THERE IS NOT A RECALL. THE VEHICLE WILL START UP, BUT THE CORRODED HARNESS HAS TO BE CLEANED FROM TIME TO TIME. *AK
VEHICLE FIRE CAUSED BY ASHORT IN THE IGNITION SWITCH.
DRIVING AT APPROXIMATELY 45-50 MPH SMELLED SMOKE/BURNING, LIGHTS WENT COMPLETELY OUT. STEERING COUPLING BOLTS WERE LOOSE, VEHICLE LOST CONTROL, RESULTING IN A COLLISION. *AK
WHEN PUTTING IN IGNITION SOMETIMES LOCKS UP. *AK CONSUMER STATES THIS HAS HAPPENED 3-4 TIMES BEFORE AND SINCE RECALL OF CETTAIN VEHICLES, CONSUMER WAS ADVISED THAT HIS VEHICLE NOT INCLUDED IN RECALL.*JB
HORN IS LOCATED ON STEERING WHEEL WITH AIR BAG, DIFFICULT TO LOCATE. TT *JB
DRIVER HAS DIFFICULTY FINDING THE HORN PAD, ESPECIALLY DURING AT NIGHT. TT *SLC
1) ELECTRICAL SYSTEM FAILS WITH ERRATIC OPERATION OF LIGHTS AND SEVERE STALLING. 2) BRAKE SYSTEM FAILS WITH PEDAL GOING TO FLOOR. UNABLE TO DETECT FLUID LOSS.
Official recalls
308V051000 · Vehicle Speed Control:cruise Control
Feb 4, 2008
FORD IS RECALLING 225,000 MY 1992-2003 ECONOLINE, MY 1993-1995 TAURUS SHO, MY 1992-1998 CROWN VICTORIA, MY 1993 BRONCO, F-SERIES, MY 1995-1997 F-SERIES SUPER DUTY STRIPPED CHASSIS, MY 1992-1998 MERCURY GRAND MARQUIS, AND MY 1992-1995 LINCOLN TOWN CAR VEHICLES. THE AFFECTED VEHICLES WERE PREVIOUSLY REPAIRED USING A WIRING HARNESS THAT IS NOT COMPATIBLE WITH THE VEHICLE CIRCUIT POLARITY.
Consequence & remedy
Consequence: AS A RESULT, THE FUSE IS LOCATED IN THE OUTPUT CIRCUIT RATHER THAN IN THE INTENDED INPUT POWER FEED CIRCUIT, AND MAY NOT OFFER THE INTENDED PROTECTION IN THE EVENT OF AN ELECTRICAL SHORT TO GROUND.
Remedy: DEALERS WILL INSTALL A NEW WIRING HARNESS, OR REPLACE THE MATING ELECTRICAL COMPONENT. THE RECALL BEGAN ON FEBRUARY 18, 2008. OWNERS MAY CONTACT FORD AT 1-800-392-3673.
07V336000 · Vehicle Speed Control
Aug 3, 2007
ON CERTAIN PICKUP TRUCKS, PASSENGER VEHICLES, SPORT UTILITY VEHICLES, AND MOTOR HOMES CHASSIS, THE SPEED CONTROL DEACTIVATION SWITCH MAY, UNDER CERTAIN CONDITIONS, LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN.
Consequence & remedy
Consequence: THIS COULD RESULT IN AN UNDERHOOD FIRE.
Remedy: DEALERS WILL INSTALL A FUSED WIRING HARNESS. OWNERS OF THE PASSENGER CARS INCLUDED IN THIS CAMPAIGN WILL BE INSTRUCTED TO RETURN THEIR VEHICLES TO THEIR DEALERS TO HAVE THE SPEED CONTROL DEACTIVATION SWITCH DISCONNECTED AS AN INTERIM REPAIR. AS SOON AS REPAIR PARTS ARE AVAILABLE (EXPECTED OCTOBER 2007), OWNERS WILL BE INSTRUCTED TO RETURN TO THE DEALERS FOR INSTALLATION OF A FUSED WIRING HARNESS. THE RECALL BEGAN ON AUGUST 13, 2007, AND MAILING COMPLETED BY SEPTEMBER 19, 2007. OWNERS MAY CONTACT FORD AT 1-888-222-2751.
99V124000 · Electrical System
May 19, 1999
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SPEED CONTROL DEACTIVATION SWITCH CAN DEVELOP A RESISTIVE SHORT IN THE ELECTRICAL CIRCUIT THAT COULD POTENTIALLY RESULT IN AN UNDERHOOD FIRE. A FIRE IS POSSIBLE BOTH WHEN THE VEHICLE IS RUNNING AND WHEN THE VEHICLE ENGINE IS OFF. ALSO, THE SHORT COULD DISABLE THE SPEED CONTROL SYSTEM OR CAUSE THE BRAKE LIGHT FUSE TO OPEN.
Consequence & remedy
Consequence: A FIRE CAN ORIGINATE IN THE LEFT FRONT UNDERHOOD AREA.
Remedy: DEALERS WILL INSTALL A NEW SPEED CONTROL DEACTIVATION SWITCH AND CONNECTOR SHELL. OWNER NOTIFICATION BEGAN MAY 20, 1999.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
5EA02025 · Speed Control Deactivation Switch Fires
Opened Sep 6, 2002 · Closed Jun 30, 2004
Status: closed (inferred from source dates) · Engine And Engine Cooling
BASED ON THE LOW RATE OF FIRE INCIDENTS (2.5 INCIDENTS PER 100,000 VEHICLES SOLD) WHERE FAILURE OF THE SCDS IS INVOLVED AND THE AGE OF THE VEHICLES ? 7 TO 11 YEARS ? A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
DP02007 · FUEL-FED Fires
Opened Aug 22, 2002 · Closed Dec 4, 2002
Status: closed (inferred from source dates) · Vehicle Speed Control:linkages
THE FARS DATA SHOWS THAT THE RISK OF FIRE FROM IMPACT IN ALL DIRECTIONS IN THE SUBJECT VEHICLES IS THE SAME AS ALL OTHER SEDANS.THE SUBJECT VEHICLES ARE NOT OVER REPRESENTED WITH RESPECT TO THE RISK OF FIRE IN REAL-WORLD HIGH-ENERGY CRASHES.A FURTHER DISCUSSION OF ISSUES RELATED TO POST CRASH FIRES IN THE SUBJECT VEHICLES IS SET OUT IN THE CLOSING REPORT FOR SQ 01-014 AND THAT REPORT IS IN THE DOCKET FOR THIS PETITION.AFTER REVIEWING THE PETITION AND ITS SUPPORTING MATERIALS, AS WELL AS INFORMATION FURNISHED BY FORD AND GM, AND INFORMATION WITHIN THE AGENCY'S POSSESSION FROM PREVIOUS INVESTIGATIONS AND OTHER RELATED ACTIONS,NHTSA HAS CONCLUDED THAT FUTHER INVESTIGATION CONCERNING POST-CRASH FIRES IN THE SUBJECT VEHICLES IS NOT LIKELY TO LEAD TO A DECISION THAT THE VEHICLES CONTAIN A SAFETY DEFECT.
SQ01014 · Post Rear End Collision Fires
Opened Nov 27, 2001 · Closed Oct 3, 2002
Status: closed (inferred from source dates) · Fuel System, Gasoline:storage
There is no summary currently available
RQ01002 · Engine Compartment Fires
Opened Sep 20, 2001 · Closed Sep 6, 2002
Status: closed (inferred from source dates) · Engine And Engine Cooling
No summary supplied.
PE93086 · Hood FLY-UP While Driving
Opened Oct 1, 1993 · Closed Feb 28, 1994
Status: closed (inferred from source dates) · Structure
There is no summary currently available